This circuit was found in a Motorola documentation from 1975. Modern equivalent transistors such as the BF245 can be used. The circuit is powered by 9 V voltage from cells or batteries.
This circuit, which applies to configurations with triacs of the TIC series, was found in a...
This simple standing waveform (ROE or SWR) meter is used to adjust antenna matching with...
This circuit has a visual indication of activation and is suitable for people with hearing...